Cats and birds won’t be filling up your landfills when all those blades need replacing...
I once spoke to an engineer who worked on wind turbines.
He said that the general public does not understand the enormous stresses that are placed on the gearbox by those massive turning blades. Keeping them working requires regular, intensive maintenance.
Unfortunately he said the typical owner just blows off the maintenance and milks what he has until his government subsidies run out.
So yes, your landfill comment is spot-on.